CN103624387B - Automobile current generator cooling fan blade is welded to epitrochanterian welding method by one - Google Patents
Automobile current generator cooling fan blade is welded to epitrochanterian welding method by one Download PDFInfo
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- CN103624387B CN103624387B CN201310678024.8A CN201310678024A CN103624387B CN 103624387 B CN103624387 B CN 103624387B CN 201310678024 A CN201310678024 A CN 201310678024A CN 103624387 B CN103624387 B CN 103624387B
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- leaf
- hollow columnar
- aft
- forefan
- rotor body
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/14—Projection welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/002—Resistance welding; Severing by resistance heating specially adapted for particular articles or work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/34—Preliminary treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/36—Auxiliary equipment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/006—Vehicles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The invention discloses one and automobile current generator cooling fan is welded to epitrochanterian welding method, adopt the projection welding of inversion intermediate frequency direct current, during welding, by front, aft-fan leaf is respectively put in lower limit frock and upper limit frock, being coordinated with lower limit frock by rotor body is placed on forefan leaf by rotor body again, in control, lower limit frock wherein any one limiting tool moves to another one limiting tool, by front, the pedestal of aft-fan leaf is pressed in the pawl pole both ends of the surface of rotor body respectively, welding is completed again by after the electrifying electrodes in lower limit frock and upper limit frock.The total quality of the rotor that the present invention welds out is good, and weld size, weld strength, solder joint outward appearance can realize strict control, and it is also very little to weld the unbalance dynamic caused rotor assembly; Processing ease of the present invention, remodel easily, not easily occur the mistake that human factor causes and waste product, improve the qualification rate of product, improve efficiency, reduce labour intensity.
Description
Technical field
The present invention relates to one and motor cooling fan blade is welded to epitrochanterian welding method, particularly relate to one and automobile current generator cooling fan blade is welded to epitrochanterian welding method, belong to field of motor manufacturing.
Background technology
Since nineteen nineties, along with the develop rapidly of automobile industry, it is also more and more higher to the requirement of spare and accessory parts, more and more strictly.Namely automobile current generator is the accessory that above automobile, a technology content is higher, its performance and structure there occurs very large lifting than before, as built-in cooling type automobile current generator, its design philosophy in the type of cooling and cooling structure, progressively becomes the main flow of AC generator for vehicle at present.
Built-in cooling type automobile current generator, its cooling fan blade is directly welded on rotor claw extremely to go up, the method be welded to by cooling fan blade above rotor has a variety of, compares and common are: condenser discharge projection welding, phase secondary rectification projection welding and the projection welding of inversion intermediate frequency direct current.In recent years, the projection welding of inversion intermediate frequency direct current has progressively become the main method used of cooling fan blade welding.Adopt the projection welding of inversion intermediate frequency direct current cooling fan blade to be welded to rotor claw when extremely go up, need spacing for forward and backward cooling fan blade fixing, then allow and to produce relative motion between upper and lower frock and realize salient point and weld.Can accurately locate between cooling fan blade and rotor claw pole, spacing, directly have influence on the quality of whole rotor.
At present, state, inside and outside automobile current generator producer are when carrying out cooling fan blade welding, and extremely go up in order to it can accurately be positioned rotor claw, the welding method of employing is comparatively complicated, and complex operation during welding, wastes time and energy, and workman will cause waste product to occur slightly because of carelessness.
Application publication number is CN103341687A, Shen Qing Publication day is that the Chinese invention patent on October 9th, 2013 discloses and a kind of blade is welded on epitrochanterian welding tooling, it is characterized in that, comprise the first copper spacing electrode and the second spacing electrode, described first spacing electrode comprises the holder set gradually, rolling disc and rotor load bearing seat, described rolling disc is set on described rotor load bearing seat and is also fixedly connected with it, the projection of described rotor load bearing seat front end inserts in described holder, described rotor load bearing seat rotates around described holder, the diameter of bearing end and the diameter compatible of described rotor of described rotor load bearing seat rear end close, the cylindrical of described bearing end is provided with the locating slot of locating described rotor, described second spacing electrode is provided with the storage tank taking up described blade, described second spacing electrode tightly locks by bolt the clamping piece having and described blade is pressed in described storage tank.
Publication number is CN101306496A, publication date is that the Chinese invention patent on November 19th, 2008 discloses a kind of fan blade and outer rotor welding tool, it is characterized in that: fan blade and outer rotor welding tool are made up of base plate, outer rotor positioning seat, fan blade locating template and backstay, outer rotor positioning seat is positioned at the center of bottom panel, and 3 or multi-disc fan blade locating template are arranged on the surrounding of outer rotor positioning seat equidistantly and adopt backstay to support.
The fan blade related in above-mentioned patent and automobile current generator cooling fan blade are different, the product scope implemented is also different: ordinary circumstance, before automobile current generator, rear cooling fan blade is all punch formings again after a monoblock sheet metal upper punch cuts blade, thus its cooling fan blade is a monoblock, be made up of platen surface and blade, its platen surface is designed with 6 salient points, described cooling fan blade is welded on rotor and is welded on the extreme face of pawl of rotor by the salient point of 6 in fan leaf platen surface exactly, and the fan blade related in above-mentioned patent is piecemeal, obviously, the welding procedure of the above-mentioned all inapplicable automobile current generator cooling fan blade of two kinds of welding methods involved by publication.
Summary of the invention
Technical problem to be solved by this invention is for there is frock complexity, location difficulty, complex operation in prior art, easily going out the defect of waste product, there is provided a kind of and automobile current generator cooling fan blade be welded to epitrochanterian welding method, cooling fan blade can be put into by shirtsleeve operation action and simple frock by accurately, locate, spacing and be welded to accurately on the extreme face of rotor claw.Adopt the present invention the total quality of rotor that welds out good, weld size, weld strength, solder joint outward appearance all can realize strict control, and the unbalance dynamic caused rotor body after welding is very little; The advantage that method of the present invention has " simplify frock, simplify the operation, improve product percent of pass, reduce labour intensity, raise labour efficiency ".
For solving above technical problem, the technical solution adopted in the present invention is: automobile current generator cooling fan is welded to epitrochanterian welding method by one, adopt the projection welding of inversion intermediate frequency direct current, during welding, by front, aft-fan leaf is respectively put in lower limit frock and upper limit frock, before making, aft-fan leaf is limited in described lower limit frock and upper limit frock respectively, being coordinated with described lower limit frock by rotor body is placed on described forefan leaf by rotor body again, described rotor body is made to be limited on described forefan leaf, control described on, lower limit frock wherein any one limiting tool moves to another one limiting tool, by front, the pedestal of aft-fan leaf is pressed in the pawl pole both ends of the surface of rotor body respectively, welding is completed again by after the electrifying electrodes in described lower limit frock and upper limit frock.
Preferably, described lower limit frock comprises lower shoe, be arranged on the hollow columnar lower convex platform on described lower shoe, the hollow columnar bottom electrode of the axial protuberance on the flange being arranged on described hollow columnar lower convex platform and near described hollow columnar lower convex platform, be arranged on the hollow columnar internal diameter centring ring on the axial protuberance end face of described hollow columnar lower convex platform, be arranged on the spacing preiection on described hollow columnar internal diameter centring ring side, also comprise the rotor body stopping means be arranged on described lower shoe; The described excircle dimension of hollow columnar internal diameter centring ring and the inner circle of forefan leaf match, and the technical gaps in the size of described spacing preiection and described forefan leaf inner circle matches.
Preferably, described rotor body stopping means comprises the back-up block be arranged on described lower shoe, is arranged on the pawl pole locating piece on described back-up block, and it becomes V-type to be arranged on described back-up block, forms V-type groove between it; The size of the single claw that described V-type groove and described rotor body pawl are extremely gone up matches, and described back-up block and pawl pole locating piece are that overall processing is shaping or split assembling parts forms.
Preferably, described upper limit frock comprises upper plate, be arranged on the hollow columnar convex platform on described upper plate, the hollow columnar top electrode of the axial protuberance on the flange being arranged on described hollow columnar convex platform and near described hollow columnar convex platform, be arranged on the contiguous block of the flange side of described hollow columnar convex platform, be arranged on the hollow columnar external diameter spacing collar of described contiguous block end, be arranged on the locating piece in the inner circle of described hollow columnar external diameter spacing collar, be arranged on the magnetic devices on described locating piece; The described inner circle size of hollow columnar external diameter spacing collar and the maximum excircle of aft-fan leaf match, and the locating blades of described locating piece and aft-fan leaf matches, and namely the curve radian at its position contacted mutually mates.
Preferably, described locating piece is set to 2 pieces, and it has groove, and described magnetic devices is arranged in the groove on described locating piece.
Preferably, described magnetic devices is permanent magnet or electromagnet.
Preferably, described forefan leaf to be put in lower limit frock, comprises the following steps:
(1) aim at the cylindrical of described hollow columnar internal diameter centring ring, by the pedestal on forefan leaf upward, by the inner circle of forefan leaf, the technical gaps in the inner circle of described forefan leaf aimed at the spacing preiection of described hollow columnar internal diameter centring ring, insert;
(2), rotate forefan leaf, make the technical gaps in the inner circle of described forefan leaf accurately aim at the spacing preiection of described hollow columnar internal diameter centring ring;
(3) after, aiming at by forefan leaf along described spacing preiection toward transferring, forefan leaf drops on described hollow columnar bottom electrode automatically, forefan leaf puts into the criterion put in place: the inner circle of described forefan leaf is fastened on the cylindrical of described hollow columnar internal diameter centring ring, technical gaps in the inner circle of described forefan leaf is fastened on the spacing preiection of described hollow columnar internal diameter centring ring, and the back side of six pedestals on described forefan leaf is close on described hollow columnar bottom electrode.
Preferably, described aft-fan leaf to be put in upper limit frock, comprises the following steps:
(1), make the maximum excircle place of aft-fan leaf aim at the inner circle of described hollow columnar external diameter spacing collar, by the pedestal on aft-fan leaf down, insert;
(2), rotation aft-fan leaf is located blade and aims at described locating piece;
(3), after aligning, aft-fan leaf is up put along locating piece, move on aft-fan leaf is automatic under the suction-operated of described magnetic devices, the back side of six of aft-fan leaf pedestals is made to be adjacent to described hollow columnar top electrode, aft-fan leaf puts into the criterion put in place: the maximum excircle place of described aft-fan leaf is fastened on the inner circle of described hollow columnar external diameter spacing collar, the curve cambered surface that the locating blades of described aft-fan leaf and described locating piece match is close together, the back side of the pedestal on described aft-fan leaf is close on described lower electrode tip, magnetic devices on described locating piece adsorbs aft-fan leaf firmly.
Preferably, rotor body is placed on described forefan leaf by described cooperation with described lower limit frock by rotor body, comprises the following steps:
(1), the axle of rotor body is aimed at the hollow inner circle of described hollow columnar lower convex platform, insert;
(2), in the process inserted, a pawl on rotor body extremely naturally snaps in the V-type groove of pawl pole locating piece and is guided drive rotor body automatic capturing to put in place to ensure that rotor body is put into by V-type groove, rotor body puts into the criterion put in place: an end face on rotor body is adjacent on six pedestals of described forefan leaf, and a pawl pole on described rotor body is fastened in the V-type groove of described pawl pole locating piece.
Beneficial effect of the present invention is: the present invention first utilizes upper and lower limiting tool forward and backward fan leaf and rotor body pawl pole accurately to be located, and then carries out energising welding.This ensure that the accurate location between forward and backward fan leaf and rotor body pawl pole, the total quality of welding rotor is out good, and weld size, weld strength, solder joint outward appearance and unbalance dynamic can realize strict control.
Accompanying drawing explanation
Fig. 1 is that lower limit tooling shaft after removing rotor body stopping means in the present invention is to sectional structure schematic diagram;
Fig. 2 is the perspective view of lower limit position frock of the present invention and forefan leaf;
Fig. 3 is the perspective view after forefan leaf being put into lower limit position of the present invention frock;
Rotor body is placed into face structural representation after on the forefan leaf in lower limit frock by Fig. 4;
Fig. 5 is that upper limit tooling shaft in the present invention is to sectional structure schematic diagram;
Fig. 6 is the sectional perspective structural representation of upper limit frock and aft-fan leaf in the present invention;
Fig. 7 is the sectional perspective structural representation put into by aft-fan leaf in the present invention after upper limit frock;
When Fig. 8 is for welding, upper and lower limiting tool, the axial section structural representation of forward and backward fan leaf and rotor body;
Fig. 9 is A portion structure for amplifying schematic diagram in Fig. 8;
In figure: 1. lower shoe, 2. the flange of hollow columnar lower convex platform, 3. the axial protuberance of hollow columnar lower convex platform, 4. hollow columnar internal diameter centring ring, 5. spacing preiection, 6. hollow columnar bottom electrode body, 7. lower electrode tip, 8. the inner circle of forefan leaf, 9. technical gaps, 10. pedestal, 11. back-up blocks, 12. pawl pole locating pieces, 13. pawl poles, 14. upper plates, the flange of 15. hollow columnar convex platforms, the axial protuberance of 16. hollow columnar convex platforms, 17. contiguous blocks, 18. hollow columnar external diameter spacing collars, 19. locating pieces, 20. magnetic devices, 21. hollow columnar top electrode bodies, 22. upper electrode tips, 23. locating blades.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, elaboration detailed is further done to technical scheme of the present invention.
Embodiment: automobile current generator cooling fan is welded to epitrochanterian welding method by one, adopt the projection welding of inversion intermediate frequency direct current, during welding, by front, aft-fan leaf is respectively put in the lower limit frock with electrode and the upper limit frock with electrode, before making, aft-fan leaf to be limited in respectively in described lower limit frock and upper limit frock and to contact with the electrode of described lower limit frock and upper limit frock respectively, being coordinated with described lower limit frock by rotor body is placed on described forefan leaf by rotor body again, described rotor body is made to be limited on described forefan leaf, control described on, lower limit frock wherein any one limiting tool moves to another one limiting tool, by front, the pedestal of aft-fan leaf is pressed in the pawl pole both ends of the surface of rotor body respectively, welding is completed again by after the electrifying electrodes in described lower limit frock and upper limit frock.
The intermediate frequency welding tooling adopted in the present invention comprises for forefan leaf centering location, for limiting the lower limit frock that forefan leaf rotates around himself axis and rotates around himself axis for restrict rotor body; For aft-fan leaf centering location, for limiting aft-fan leaf around the rotation of himself axis and the upper limit frock of adsorbing aft-fan leaf.
As shown in Figure 1 to Figure 3, described lower limit frock comprises lower shoe 1, be arranged on the hollow columnar lower convex platform on described lower shoe 1, described hollow columnar lower convex platform comprises the flange 2 of hollow columnar lower convex platform and the axial protuberance 3 of hollow columnar lower convex platform, the hollow columnar bottom electrode of the axial protuberance 3 on the flange 2 being arranged on described hollow columnar lower convex platform and near described hollow columnar lower convex platform, described hollow columnar bottom electrode comprises six lower electrode tips 7 that one end is arranged on the hollow columnar bottom electrode body 6 on the flange 2 of described hollow columnar lower convex platform and is arranged on described hollow columnar bottom electrode body 6 other end, described lower electrode tip 7 is six columns protruded from described hollow columnar bottom electrode body 6, circularize centered by the axial line of bottom electrode and be distributed in described hollow columnar bottom electrode body 6, be arranged on the hollow columnar internal diameter centring ring 4 on axial protuberance 3 end face of described hollow columnar lower convex platform, be arranged on the spacing preiection 5 on described hollow columnar internal diameter centring ring 4 side, also comprise the rotor body stopping means be arranged on described lower shoe 1, the outer circumference surface of the axial protuberance 3 of described hollow columnar lower convex platform and the inner peripheral surface of described hollow columnar bottom electrode with contact, the described excircle dimension of hollow columnar internal diameter centring ring 4 and the inner circle 8 of forefan leaf match, and the technical gaps 9 in the size of described spacing preiection 5 and described forefan leaf inner circle matches.
As shown in Figure 2, the pedestal 10 of described forefan leaf is distributed on the circular protrusions in forefan leaf platen surface, its center is distributed in circumferentially same, line centered by the axial line of the former fan leaf of this circumference, external diameter can set according to forefan leaf size, relative to the reverse side of six pedestals 10 of forefan leaf and six lower electrode tips 7 centering one by one of described hollow columnar bottom electrode; The inner circle 8 of forefan leaf is designed with a slight technical gaps 9 so that and described spacing preiection 5 coordinate carry out spacing.The described excircle dimension of hollow columnar internal diameter centring ring 4 and the inner circle 8 of forefan leaf match, be the centering location in order to realize forefan leaf, the technical gaps 9 in the size of described spacing preiection 5 and described forefan leaf inner circle matches and to rotate around himself axis to limit forefan leaf.
As shown in Figure 3 to Figure 4, described rotor body stopping means comprises the back-up block 11 be arranged on described lower shoe 1, is arranged on the pawl pole locating piece 12 on described back-up block 11, and it becomes V-type to be arranged on described back-up block 11, forms V-type groove between it; The size of the single pawl pole 13 on described V-type groove and described rotor body matches.Described back-up block 11 and pawl pole locating piece 12 are that split assembling parts forms, and also can be that overall processing is shaping.When placing rotor body, by being fastened in the V-type groove of described pawl pole locating piece 12 the single pawl pole 13 on rotor body, realize the location of rotor body, restrict rotor body rotates around himself axis.
As shown in Figures 5 to 7, described upper limit frock comprises upper plate 14, be arranged on the hollow columnar convex platform on described upper plate 14, described hollow columnar convex platform comprises the flange 15 of hollow columnar convex platform and the axial protuberance 16 of hollow columnar convex platform, the hollow columnar top electrode of the axial protuberance 16 on the flange 15 being arranged on described hollow columnar convex platform and near described hollow columnar convex platform, described hollow columnar top electrode comprises six upper electrode tips 22 being arranged on one end and being arranged on the hollow columnar top electrode body 21 on the flange 15 of described hollow columnar convex platform and being arranged on described hollow columnar top electrode body 21 other end, be arranged on the contiguous block 17 of flange 15 side of described hollow columnar convex platform, be arranged on the hollow columnar external diameter spacing collar 18 of described contiguous block 17 end, be arranged on the locating piece 19 in the inner circle of described hollow columnar external diameter spacing collar 18, be arranged on the magnetic devices 20 on described locating piece 19, the outer circumference surface of the axial protuberance 16 of described hollow columnar convex platform matches with the inner peripheral surface of described hollow columnar top electrode, and the axial protuberance 16 of described hollow columnar convex platform and hollow columnar top electrode are positioned at the inside of described hollow columnar external diameter spacing collar 18, the described inner circle size of hollow columnar external diameter spacing collar 18 and the maximum excircle of aft-fan leaf match, and setting is the first time centering location in order to realize aft-fan leaf like this, accurately locates reduce displacement for second time centering positioning instant, described locating piece 19 matches with the locating blades 23 of aft-fan leaf, and namely the curve radian at its position contacted mutually mates, and arranging like this is that the second time positioning instant realizing aft-fan leaf is accurately located.
As shown in Figure 6, the pedestal 10 of described aft-fan leaf is distributed on the circular protrusions in aft-fan leaf platen surface, its center is distributed in circumferentially same, line centered by the axial line of the later fan leaf of this circumference, external diameter can set according to aft-fan leaf size, relative to the reverse side of six pedestals 10 of aft-fan leaf and six upper electrode tips 22 centering one by one of described hollow columnar top electrode, the blade of aft-fan leaf comprises multiple common blade and a pair locating blades 23 about aft-fan leaf axisymmetrical, the curve radian of described locating blades 23 and the curve radian of common blade different, curve radian and the described locating piece curve radian of locating blades 23 match, when aft-fan leaf is put in described upper limit frock, the curve cambered surface matched by described locating blades 23 and locating piece 19 is matched to contact and rotates around himself axis to limit aft-fan leaf, and realization second time positioning instant is accurately located, make aft-fan leaf precise alignment in the margin of tolerance, magnetic devices 20 on described locating piece adsorbs aft-fan leaf to ensure that it can not fall down.Described locating piece 19 is set to 2 pieces, and it all has groove, and described magnetic devices 20 is arranged in the groove on described locating piece 19, and the quantity of described magnetic devices 20 is 2.Described magnetic devices 20 is permanent magnet, also can be arranged to electromagnet.
As shown in Fig. 2, Fig. 3, Fig. 8 and Fig. 9, described forefan leaf to be put in lower limit frock, comprises the following steps:
(1), by the pedestal 10 on forefan leaf upward, the inner circle 8 of forefan leaf aimed at the cylindrical of described hollow columnar internal diameter centring ring 4, the technical gaps 9 in the inner circle of described forefan leaf aimed at the spacing preiection 5 of described hollow columnar internal diameter centring ring, insert;
(2), rotate forefan leaf, make the technical gaps 9 in the inner circle of described forefan leaf accurately aim at the spacing preiection 5 of described hollow columnar internal diameter centring ring;
(3) after, aiming at by forefan leaf along described spacing preiection toward transferring, forefan leaf drops on the lower electrode tip 7 of described hollow columnar bottom electrode automatically, forefan leaf puts into the criterion put in place: the inner circle 8 of described forefan leaf is fastened on the cylindrical of described hollow columnar internal diameter centring ring 4, technical gaps 9 in the inner circle of described forefan leaf is fastened on the spacing preiection 5 of described hollow columnar internal diameter centring ring, and the back side of six pedestals 10 on described forefan leaf is close on the lower electrode tip 7 of described hollow columnar bottom electrode.
As shown in Figures 6 to 9, described aft-fan leaf to be put in upper limit frock, comprises the following steps:
(1), make the maximum excircle place of aft-fan leaf aim at the inner circle of described hollow columnar external diameter spacing collar 18, by the pedestal 10 on aft-fan leaf down, insert;
(2), rotation aft-fan leaf is located blade 23 and aims at described locating piece 19;
(3), after aligning, aft-fan leaf is up put along locating piece 19, move on aft-fan leaf is automatic under the suction-operated of described magnetic devices 20, the back side of six of aft-fan leaf pedestals 10 is made to be adjacent on the upper electrode tip 22 of described hollow columnar top electrode, aft-fan leaf puts into the criterion put in place: the maximum excircle place of described aft-fan leaf is fastened on the inner circle of described hollow columnar external diameter spacing collar 18, the curve cambered surface that the locating blades 23 of described aft-fan leaf and described locating piece 19 match is close together, the back side of the pedestal 10 on described aft-fan leaf is close on described lower electrode tip 22, magnetic devices 20 on described locating piece adsorbs aft-fan leaf firmly.
As shown in Fig. 3, Fig. 4, Fig. 8 and Fig. 9, rotor body is placed on described forefan leaf by described cooperation with described lower limit frock by rotor body, comprises the following steps:
(1), the axle (pulley end) of rotor body is aimed at the hollow inner circle of described hollow columnar lower convex platform, after any for the magnet exciting coil of rotor body lead-out wire is aimed at " the lead-out wire datum line " that lower convex platform identifies, insert;
(2), in the process inserted, a pawl pole 13 on rotor body naturally snaps in the V-type groove of pawl pole locating piece 12 and is guided drive rotor body automatic capturing to put in place to ensure that rotor body is put into by V-type groove, rotor body puts into the criterion put in place: an end face on rotor body is adjacent on six pedestals 10 of described forefan leaf, and a pawl pole 13 on described rotor body is fastened in the V-type groove of described pawl pole locating piece 12.
The axle of described rotor body can be divided into pulley end and collector ring end, and described lead-out wire datum line is that technician identifies on described hollow columnar lower convex platform according to the feature of product.
In the present embodiment, described lower limit frock maintains static, and described upper limit frock is connected with cylinder mechanism, under the effect of cylinder mechanism, can move by limiting tool downwards described in described upper limit frock.
As shown in Fig. 2, Fig. 6, Fig. 8 and Fig. 9, when welding, first forefan leaf and aft-fan leaf are put into lower limit frock and upper limit frock respectively: when putting into forefan leaf, by the pedestal 10 on forefan leaf upward, the inner circle 8 of forefan leaf aimed at the cylindrical of described hollow columnar internal diameter centring ring 4, the technical gaps 9 in the inner circle of described forefan leaf aimed at the spacing preiection 5 of described hollow columnar internal diameter centring ring, insert; Rotate forefan leaf, make the technical gaps 9 in the inner circle of described forefan leaf accurately aim at the spacing preiection 5 of described hollow columnar internal diameter centring ring; After aligning by forefan leaf along described spacing preiection toward transferring, forefan leaf drops on the lower electrode tip 7 of described hollow columnar bottom electrode automatically, forefan leaf puts into the criterion put in place: the inner circle 8 of described forefan leaf is fastened on the cylindrical of described hollow columnar internal diameter centring ring 4, technical gaps 9 in the inner circle of described forefan leaf is fastened on the spacing preiection 5 of described hollow columnar internal diameter centring ring, and the back side of six pedestals 10 on described forefan leaf is close on the lower electrode tip 7 of described hollow columnar bottom electrode;
When putting into aft-fan leaf, by the pedestal 10 on aft-fan leaf down, make the maximum excircle place of aft-fan leaf aim at the inner circle of described hollow columnar external diameter spacing collar 18, insert, rotation aft-fan leaf is located blade 23 and aims at described locating piece 19, after aligning, aft-fan leaf is up put along locating piece 19, move on aft-fan leaf is automatic under the suction-operated of described magnetic devices 20, the back side of six of aft-fan leaf pedestals 10 is made to be adjacent on the upper electrode tip 22 of described hollow columnar top electrode, aft-fan leaf puts into the criterion put in place: the maximum excircle place of described aft-fan leaf is fastened on the inner circle of described hollow columnar external diameter spacing collar 18, the curve cambered surface that the locating blades 23 of described aft-fan leaf and described locating piece 19 match is close together, the back side of the pedestal 10 on described aft-fan leaf is close on described lower electrode tip 22, magnetic devices 20 on described locating piece adsorbs aft-fan leaf firmly,
As shown in Figure 4, being coordinated with described lower limit frock by rotor body is placed on described forefan leaf by rotor body again: during placement, the axle (pulley end) of rotor body is aimed at the hollow inner circle of described hollow columnar lower convex platform, after any for the magnet exciting coil of rotor body lead-out wire is aimed at " the lead-out wire datum line " that lower convex platform identifies, insert; In the process inserted, a pawl pole 13 on rotor body naturally snaps in the V-type groove of pawl pole locating piece 12 and is guided drive rotor body automatic capturing to put in place to ensure that rotor body is put into by V-type groove, rotor body puts into the criterion put in place: an end face on rotor body is adjacent on six pedestals 10 of described forefan leaf, and a pawl pole 13 on described rotor body is fastened in the V-type groove of described pawl pole locating piece 12;
Then controlling described upper limit frock drives the forefan leaf in aft-fan leaf downward limiting tool to move the extreme face of the pawl pedestal of forefan leaf and fan leaf being pressed on rotor body to keep certain pressure, then completes welding by after the hollow columnar bottom electrode of described lower limit frock and upper limit frock and the energising of hollow columnar top electrode.
In sum, the present invention first utilizes upper and lower limiting tool forward and backward fan leaf and rotor body pawl pole accurately to be located, and then carries out energising welding.This ensure that the accurate location between forward and backward fan leaf and rotor body pawl pole, the total quality of welding rotor is out good, weld size, weld strength, solder joint outward appearance can realize strict control, and it is also very little to weld the unbalance dynamic caused rotor assembly; In addition, processing ease of the present invention, remodel easily, not easily occur the mistake that human factor causes and waste product, improve the qualification rate of product, improve efficiency, reduce labour intensity.
Above embodiment is used for illustrative purposes only, but not limitation ot it.The relevant technologies personnel of related fields, without departing from the spirit and scope of the present invention, can also make a variety of changes or convert.Therefore, all equivalent technical schemes also should belong to protection scope of the present invention.Protection scope of the present invention should be limited by each claim.
Claims (8)
1. automobile current generator cooling fan is welded to epitrochanterian welding method by one kind, adopt the projection welding of inversion intermediate frequency direct current, it is characterized in that: during welding, by front, aft-fan leaf is respectively put in lower limit frock and upper limit frock, before making, aft-fan leaf is limited in described lower limit frock and upper limit frock respectively, being coordinated with described lower limit frock by rotor body is placed on described forefan leaf by rotor body again, described rotor body is made to be limited on described forefan leaf, control described on, lower limit frock wherein any one limiting tool moves to another one limiting tool, by front, the pedestal of aft-fan leaf is pressed in the pawl pole both ends of the surface of rotor body respectively, welding is completed again by after the electrifying electrodes in described lower limit frock and upper limit frock, described lower limit frock comprises lower shoe, be arranged on the hollow columnar lower convex platform on described lower shoe, the hollow columnar bottom electrode of the axial protuberance on the flange being arranged on described hollow columnar lower convex platform and near described hollow columnar lower convex platform, be arranged on the hollow columnar internal diameter centring ring on the axial protuberance end face of described hollow columnar lower convex platform, be arranged on the spacing preiection on described hollow columnar internal diameter centring ring side, also comprise the rotor body stopping means be arranged on described lower shoe, the described excircle dimension of hollow columnar internal diameter centring ring and the inner circle of forefan leaf match, and the technical gaps in the size of described spacing preiection and described forefan leaf inner circle matches.
2. welding method according to claim 1, it is characterized in that: described rotor body stopping means comprises the back-up block be arranged on described lower shoe, be arranged on the pawl pole locating piece on described back-up block, it becomes V-type to be arranged on described back-up block, forms V-type groove between it; The size of the single claw that described V-type groove and described rotor body pawl are extremely gone up matches, and described back-up block and pawl pole locating piece are that overall processing is shaping or split assembling parts forms.
3. welding method according to claim 1 and 2, it is characterized in that: described upper limit frock comprises upper plate, be arranged on the hollow columnar convex platform on described upper plate, the hollow columnar top electrode of the axial protuberance on the flange being arranged on described hollow columnar convex platform and near described hollow columnar convex platform, be arranged on the contiguous block of the flange side of described hollow columnar convex platform, be arranged on the hollow columnar external diameter spacing collar of described contiguous block end, be arranged on the locating piece in the inner circle of described hollow columnar external diameter spacing collar, be arranged on the magnetic devices on described locating piece, the described inner circle size of hollow columnar external diameter spacing collar and the maximum excircle of aft-fan leaf match, and the locating blades of described locating piece and aft-fan leaf matches, and namely the curve radian at its position contacted mutually mates.
4. welding method according to claim 3, is characterized in that: described locating piece is set to 2 pieces, and it has groove, and described magnetic devices is arranged in the groove on described locating piece.
5. welding method according to claim 4, is characterized in that: described magnetic devices is permanent magnet or electromagnet.
6. welding method according to claim 5, is characterized in that: describedly put in lower limit frock by forefan leaf, comprises the following steps:
(1) aim at the cylindrical of described hollow columnar internal diameter centring ring, by the pedestal on forefan leaf upward, by the inner circle of forefan leaf, the technical gaps in the inner circle of described forefan leaf aimed at the spacing preiection of described hollow columnar internal diameter centring ring, insert;
(2), rotate forefan leaf, make the technical gaps in the inner circle of described forefan leaf accurately aim at the spacing preiection of described hollow columnar internal diameter centring ring;
(3) after, aiming at by forefan leaf along described spacing preiection toward transferring, forefan leaf drops on described hollow columnar bottom electrode automatically, forefan leaf puts into the criterion put in place: the inner circle of described forefan leaf is fastened on the cylindrical of described hollow columnar internal diameter centring ring, technical gaps in the inner circle of described forefan leaf is fastened on the spacing preiection of described hollow columnar internal diameter centring ring, and the back side of six pedestals on described forefan leaf is close on described hollow columnar bottom electrode.
7. welding method according to claim 6, is characterized in that: describedly put in upper limit frock by aft-fan leaf, comprises the following steps:
(1), make the maximum excircle place of aft-fan leaf aim at the inner circle of described hollow columnar external diameter spacing collar, by the pedestal on aft-fan leaf down, insert;
(2), rotation aft-fan leaf is located blade and aims at described locating piece;
(3), after aligning, aft-fan leaf is up put along locating piece, move on aft-fan leaf is automatic under the suction-operated of described magnetic devices, the back side of six of aft-fan leaf pedestals is made to be adjacent to described hollow columnar top electrode, aft-fan leaf puts into the criterion put in place: the maximum excircle place of described aft-fan leaf is fastened on the inner circle of described hollow columnar external diameter spacing collar, the curve cambered surface that the locating blades of described aft-fan leaf and described locating piece match is close together, the back side of the pedestal on described aft-fan leaf is close on described lower electrode tip, magnetic devices on described locating piece adsorbs aft-fan leaf firmly.
8. welding method according to claim 7, is characterized in that: rotor body is placed on described forefan leaf by described cooperation with described lower limit frock by rotor body, comprises the following steps:
(1), the axle of rotor body is aimed at the hollow inner circle of described hollow columnar lower convex platform, insert;
(2), in the process inserted, a pawl on rotor body extremely naturally snaps in the V-type groove of pawl pole locating piece and is guided drive rotor body automatic capturing to put in place to ensure that rotor body is put into by V-type groove, rotor body puts into the criterion put in place: an end face on rotor body is adjacent on six pedestals of described forefan leaf, and a pawl pole on described rotor body is fastened in the V-type groove of described pawl pole locating piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310678024.8A CN103624387B (en) | 2013-12-13 | 2013-12-13 | Automobile current generator cooling fan blade is welded to epitrochanterian welding method by one |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310678024.8A CN103624387B (en) | 2013-12-13 | 2013-12-13 | Automobile current generator cooling fan blade is welded to epitrochanterian welding method by one |
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| CN103624387A CN103624387A (en) | 2014-03-12 |
| CN103624387B true CN103624387B (en) | 2015-12-09 |
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| CN109676226B (en) * | 2019-01-29 | 2024-04-19 | 宁国金鑫电机股份有限公司 | Welding shaping tool for rotor fan of automobile generator |
| CN112743208A (en) * | 2020-12-30 | 2021-05-04 | 江西鑫田车业有限公司 | Water-cooling plate resistance welding method and equipment for new energy automobile |
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| JP4683102B2 (en) * | 2008-09-19 | 2011-05-11 | 株式会社デンソー | Manufacturing method of rotor |
| CN201537789U (en) * | 2009-09-25 | 2010-08-04 | 杭州微光电子股份有限公司 | Fan blade welding tooling |
| US20110316369A1 (en) * | 2010-06-28 | 2011-12-29 | Remy Technologies, L.L.C. | Rotor fan for an electric machine |
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Address after: No.68, Hongqi North Road, Hetang District, Zhuzhou City, Hunan Province, 412001 Patentee after: Weichai torch Technology Co.,Ltd. Address before: No.68, Hongqi North Road, Hetang District, Zhuzhou City, Hunan Province, 412001 Patentee before: ZHUZHOU TORCH SPARKPLUG Co.,Ltd. |